Plus One Launches Crowdfunding Campaign on July 1 "Cardboard Plus," a reinforced corrugated cardboard optimized for parcel delivery

“Crushed boxes, damaged goods, and excessive packaging” that erode the profits of e-commerce businesses and artisanal creators—to solve this structural logistics challenge, Plus One (brand name: Danball Plus) launched a crowdfunding campaign on July 1, 2026, for “Danball Plus,” a reinforced corrugated cardboard case optimized for parcel delivery.

“CAMPFIRE” Crowdfunding Site

https://camp-fire.jp/projects/959449/view

“Cardboard Plus” Protects Your Valuable Goods

In recent years, as the e-commerce market has expanded, the volume of packages handled by delivery services has increased, and loading densities have risen due to efforts to improve delivery efficiency and a shortage of drivers. As a result, crushed boxes and damaged goods have become frequent occurrences, leading to “losses that erode business credibility and profits”—such as returns, reshipments, customer inquiries, declining reviews, and lower repeat purchase rates.We view this situation not merely as a problem with packaging materials, but as a social issue that undermines a business’s brand value.

In e-commerce in particular, the first thing a buyer sees is not the product itself, but the “box it arrives in.” Even if the product is undamaged, a crushed box can cause anxiety, and for sole proprietors and handmade artisans, a single negative review directly impacts sales.

■ New Standards to Resolve the “Polarization” in the Cardboard Market

There are two major issues with the cardboard boxes currently in circulation:

・Low-priced boxes lack sufficient strength and carry a high risk of damage

・High-strength boxes designed for heavy items are over-specified for parcel delivery and come at a high price

To bridge this gap in the polarized market—where “cheap means weak” and “strong means expensive”—we propose “Cardboard Plus,” a reinforced-core cardboard optimized for parcel delivery.

According to theoretical calculations based on JIS standards, its compressive strength is approximately 35–40% higher than that of standard specifications. By precisely enhancing only the strength necessary for parcel delivery,

・ Eliminates excessive specifications

• Ensuring only the necessary strength

• Achieve reasonable pricing based on size and lot size

The Optimal Solution for Cardboard Selection

■ Brand printing serves as “proof of the reinforced core specification”

Cardboard Plus features brand printing, which is not merely a design element but a mark of quality certifying its reinforced core construction.

Not only does this give shippers the confidence that “I can ship with peace of mind using this box,” but it also provides recipients with the reassurance that “my package arrived in carefully selected packaging.” In an era where the box itself has become part of the brand experience, the printing on Cardboard Plus

・A commitment to quality

• A commitment to protecting the product

・Enhancement of brand value.

The box itself proves the new standard: “Reinforced Core = Cardboard Plus.”

■ Reducing logistics waste and protecting business profits

Cardboard Plus aims to achieve the following four goals:

・Reducing the risk of damage during transport

・Reducing the amount of cushioning material used

・Reducing costs associated with returns and reshipments

・Enhancing brand value

We aim to curb excessive packaging and waste caused by insufficient strength, thereby reducing waste throughout the entire logistics process.

■ Purpose of the Crowdfunding Campaign

This crowdfunding campaign aims not only to secure funding for the initial production run, but also to

・Establishing an Amazon sales infrastructure

・Expanding the size lineup

・Promoting initiatives to improve logistics quality.

We aim to spread the new common understanding that “logistics quality is an investment, not a cost,” and create an “environment where e-commerce businesses and handmade artisans can ship with peace of mind.” After the crowdfunding campaign ends, we plan to begin sales on Amazon and continue expanding our size range.

Reinforced core = Cardboard Plus. Our mission is to establish this new standard in Japan’s logistics industry and protect the trust and profits of businesses.

[Crowdfunding Overview]

Funding Goal: 1,000,000 yen

Rewards: Set of 20 sheets for 80 cm parcel size (5,500 yen, shipping included), and more

■ Project Overview

Project Name: Neither the Seller Nor the Delivery Company Is at Fault.

　　　　　　　　 Taking on a New Cardboard Box to Reduce Logistics Problems

Duration: July 1, 2026 (Wed) – July 31, 2026 (Fri)

URL: https://camp-fire.jp/projects/959449/view

<Product Overview>

Product Name: Cardboard Plus (trademark application pending)

Type: High-strength corrugated cardboard boxes

Contents: Various sizes for home delivery (60, 80, 100 sizes, etc.)

Material: Double-sided corrugated cardboard (AF) / K5 × P180 × K5

　　　　　(High-strength K5 liner on both sides, with a reinforced 180 g/m²

　　　　　 reinforced core)

■Company Overview

Trade Name: Plus One

Representative: Yuya Ichinose

Location: Mizunami City, Gifu Prefecture

Established: June 2026

Business Activities: Planning and sales of “Cardboard Plus,” a cardboard box designed exclusively for home delivery

URL: https://plusone-pack.jp

[Message from the Representative]

We launched Plus One based on the expertise we’ve cultivated over more than 10 years in sales and design within the cardboard industry. Cardboard Plus is a brand we created to address the challenges faced by small businesses struggling with negative reviews and complaints caused by crushed boxes. We aim to reduce package damage and create a logistics system that provides peace of mind for senders, recipients, and carriers alike.

[Customer Inquiries Regarding This Matter]

Plus One Customer Service

Email: info@plusone-pack.jp

Inquiry Form: https://plusone-pack.jp